i am getting around 2psi of boost and no more i wiggled some vaccumm lines and took it for a ride and all a suddin 8-10psi i was like wow! i scanned it and got a bad speed senor on pass side and code 56? i dont kno what code 56 is but maybe thats the problem? it is so slow but runs fine.
Code definitions are in Techinfo. Link at the top of the page.
At idle, please pull the vacuum line off the top of the BCA (boost control actuator) which is the round black cylindrical thing mounted to the front of the SC. Does the arm move back and forth as you pull and replace this vacuum line? Does it move FULL travel distance?
yes it moves when i pull it off ,and when i put it back on ,it goes back to normal
the bcs i think is fine. i revved it up full blast and still the 1 notch past the zero mark,wich i am guessing is 3 psi
Pull the bottom line of the cylinder than drive it. How much boost do you get then? If you get more, than the BCS (little box with the electical connector) is bad or the PCM is making it dump your boost because you run non-premium fuel.
If you don't get more boost, your BCA (the cylinder) has a leak or the vac line leading to the top does.